A catheter for insertion in the ostium of the coronary sinus in the right atrium comprised of a main reinforced portion, an intermediate zone portion and a soft tip portion wherein a portion of the catheter is curved in a double curve, wherein the first curve is a first longitudinal curve, wherein the...http://www.google.fr/patents/US5984909?utm_source=gb-gplus-shareBrevet US5984909 - Coronary sinus catheter
